That Headteacher doesn’t move sometimes is no bug. She’s just taking a break during her patrols. In Language Lil Puss Viktor‘s notebooks sometimes spawn in rooms you can’t enter, because you need the key. And in Lil Puss items don’t spawn. But mrdrnose is working on that. Yes, the bug with Doggo happend to me in my latest video. It was really annoying. I never encountered the bug with the math notebook though. Only in late language notebooks I sometimes couldn’t use my mouse anymore, which always really pissed me off.